JavaFX RadialGradient create

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.scene.paint.CycleMethod;
import javafx.scene.paint.RadialGradient;
import javafx.scene.paint.RadialGradientBuilder;
import javafx.scene.paint.Stop;
import javafx.scene.shape.Ellipse;
import javafx.stage.Stage;

public class Main extends Application {

   public static void main(String[] args) {
      Application.launch(args);/*from  w ww.j av  a  2s  .c o  m*/
   }

   @Override
   public void start(Stage primaryStage) {
      primaryStage.setTitle("java2s.com");
      Group root = new Group();
      Scene scene = new Scene(root, 300, 250, Color.WHITE);

      Ellipse bigCircle = new Ellipse();
      bigCircle.setCenterX(100);
      bigCircle.setCenterY(100);
      bigCircle.setRadiusX(50);
      bigCircle.setRadiusY(75 / 2);

      bigCircle.setStrokeWidth(3);
      bigCircle.setStroke(Color.BLACK);


      RadialGradient gradient1 = RadialGradientBuilder.create()
            .focusAngle(0)
            .focusDistance(.1)
            .centerX(80)
            .centerY(45)
            .radius(120)
            .proportional(false)
            .cycleMethod(CycleMethod.NO_CYCLE)
            .stops(new Stop(0, Color.RED), new Stop(1, Color.BLACK))
            .build();
      bigCircle.setFill(gradient1);
      root.getChildren().add(bigCircle);

      primaryStage.setScene(scene);

      primaryStage.show();
   }
}